補ほ助じょ的てき

na-adjective

auxiliary; supplementary; subsidiary; ancillary

Describes something that plays a supporting or secondary role, often used in formal or technical contexts.

• この装そう置ちは補ほ助じょ的てきな役やく割わりを果はたす。

  This device plays an auxiliary role.

• 補ほ助じょ的てきな資し料りょうを用よう意いした。

  I prepared supplementary materials.